CN218355935U - Liquid taking mechanism and automatic liquid taking device - Google Patents

Abstract

The utility model relates to a get liquid mechanism and an automatic get liquid ware. Get liquid mechanism and include: the first mounting frame is provided with a liquid taking bottle mounting part and a top plate; and the driving part comprises a driving arm and a motor, the driving arm is at least partially positioned between the top plate and the liquid taking bottle mounting part, and the motor is arranged to drive the driving arm to move towards the liquid taking bottle mounting part so as to press the pump head of the liquid taking bottle mounted at the liquid taking bottle mounting part. The driving section further includes a preload applying device configured to apply a preload to the driving arm toward the liquid-extracting bottle mounting section. The automatic liquid taking device comprises a liquid taking mechanism. According to the utility model discloses a get liquid mechanism and get liquid ware automatically and through applying the preload to the actuating arm, can reduce the load of motor, reduce the energy consumption.

Description

Liquid taking mechanism and automatic liquid taking device

Technical Field

The utility model relates to a get liquid mechanism and an automatic liquid ware of getting, more specifically, the utility model relates to a pump liquid getting mechanism and have this automatic liquid ware of getting of liquid mechanism from getting in the liquid bottle.

Background

The statements in this section merely provide background information related to the present disclosure and may not constitute prior art.

In order to prevent cross-infection of germs, disinfection devices for disinfection and sterilization, such as automatic liquid dispensers capable of automatically squeezing out disinfectant, are generally installed in various public places. During the operation of the automatic liquid taking device, when the detection module detects an object (such as a hand of a user) appearing in the sensing area, the control circuit board enables the motor to work and transmits power to the driving arm of the automatic liquid taking device, so that the driving arm presses down the pump head of the liquid taking bottle, the elastic force of the spring in the pump head of the liquid taking bottle is overcome, and the pump head is further pressed down to pump out liquid (such as hand disinfectant) in the liquid taking bottle. The driving force for driving the driving arm to press the pump head of the liquid taking bottle is completely provided by the motor, so that the load of the motor is larger, and the energy consumption of the automatic liquid taking device is larger.

Therefore, the existing automatic liquid taking device needs to be improved so as to reduce the load of the motor and further reduce the energy consumption of the automatic liquid taking device.

SUMMERY OF THE UTILITY MODEL

The utility model discloses an aim at reduces the motor load of getting liquid mechanism of automatic liquid ware of getting, reduces the energy consumption. Another object of the utility model is to provide an automatic get liquid ware get liquid adjustability of mechanism, enlarge the application range who gets liquid mechanism to and adjust the play liquid measure of getting liquid mechanism.

An aspect of the utility model provides a get liquid mechanism, should get liquid mechanism and include: the first mounting frame is provided with a liquid taking bottle mounting part and a top plate positioned above the liquid taking bottle mounting part; and the driving part comprises a driving arm and a motor, the driving arm is at least partially positioned between the top plate and the liquid taking bottle mounting part, and the motor is arranged to drive the driving arm to move towards the liquid taking bottle mounting part so as to press the pump head of the liquid taking bottle mounted at the liquid taking bottle mounting part. The drive section further includes a preload application device configured to apply a preload to the drive arm toward the liquid-extracting bottle mounting section.

The preload applying device includes an urging member which is an elastic member provided on the driving arm and is compressed to apply the preload to the driving arm toward the liquid-extracting bottle mounting portion.

In one embodiment, the biasing member is a coil spring.

In one embodiment, the preload applying apparatus further includes a guide post on which the force applying member is mounted to extend and retract along the guide post, one end of the guide post being disposed on the driving arm.

The top plate is provided with a through hole, and the other end of the guide pillar can penetrate through the through hole.

In one embodiment, the preload applying device includes a load adjusting portion configured to adjust the preload applied to the drive arm by the preload applying device.

The preload applying device includes an urging member which is an elastic member provided on the driving arm and is compressed to apply the preload to the driving arm toward the liquid-extracting bottle mounting portion. The load adjusting portion includes an adjusting member provided to adjust a compression amount of the urging member.

In one embodiment, the adjustment member passes through a through hole on the top plate to be inserted into the first mounting bracket, and an insertion amount of the adjustment member passing through the through hole can be adjusted.

In one embodiment, the adjustment member comprises a shank provided with an external thread, the through hole being a threaded hole, the shank being in threaded engagement with the through hole.

In one embodiment, the shank is provided with a central channel. The preload applying apparatus further includes a guide post on which the force applying member is mounted to extend and retract along the guide post. One end of a guide post is disposed on the drive arm and the other end of the guide post is inserted into the central channel of the shank and is movable relative to the shank.

In one embodiment, the load adjuster further comprises a baffle portion through which the adjuster member acts on the biasing member.

The shutter portion is fixedly mounted to or integrally formed at a lower end portion of the shank portion of the adjustment member. Alternatively, the flapper portion is slidably mounted to the guide post.

Get liquid mechanism and still include: a sensing module configured to detect a hand of a user; and the controller starts the motor according to the detection result of the induction module to drive the driving arm.

Another aspect of the present invention is to provide an automatic liquid taking device, which comprises a housing, and the automatic liquid taking device further comprises a liquid taking mechanism, which is accommodated in the housing.

Through setting up the preload and applying the device in order to apply the preload to the actuating arm, the utility model discloses a get liquid mechanism and get partly of elasticity that the liquid ware can overcome the spring in the pump head of getting the liquid bottle automatically, reduce the drive power that the motor need provide for the actuating arm to can reduce the load of motor, reduce the energy consumption. In addition, the preload applying device is also provided with a load adjusting part which can adjust the preload applied to the driving arm according to requirements, thereby adapting to pump heads with different elastic forces, adjusting the liquid output of the pump heads and expanding the application range of the liquid taking mechanism and the automatic liquid taking device.

Drawings

Embodiments of the invention will be described below, by way of example only, with reference to the accompanying drawings. In the drawings, wherein like features or components are designated by like reference numerals, and which are not necessarily drawn to scale, and wherein:

fig. 1 shows a perspective view of an automatic liquid extractor according to the present invention;

fig. 2 is a perspective view illustrating a liquid extracting mechanism of an automatic liquid extractor according to a first embodiment of the present invention;

fig. 3 is another perspective view illustrating a liquid extracting mechanism of an automatic liquid extractor according to a first embodiment of the present invention, in which a portion of a cover plate of the liquid extracting mechanism shown in fig. 2 is disassembled to illustrate a portion of an internal structure;

FIG. 4 illustrates a front view of the liquid extraction mechanism shown in FIG. 3;

FIG. 5 shows a perspective view of the fluid extraction mechanism shown in FIG. 3 with a portion broken away;

FIG. 6 shows a perspective view of the drive portion of the tapping mechanism;

FIG. 7 showsbase:Sub>A cross-sectional view of the tapping mechanism taken along section line A-A in FIG. 3;

FIG. 8 shows a partial enlarged view of FIG. 7;

fig. 9 is a perspective view illustrating a liquid taking mechanism of an automatic liquid taking device according to a second embodiment of the present invention;

FIG. 10 shows a front view of the liquid extraction mechanism shown in FIG. 9;

FIG. 11 shows a partial enlarged view of FIG. 10; and

figure 12 shows a cross-sectional view of the portion shown in figure 11.

Detailed Description

The following description is merely exemplary in nature and is not intended to limit the present disclosure, application, or uses. It should be understood that throughout the drawings, like reference numerals indicate like or similar parts and features. The drawings are only schematic representations of the concepts and principles of the embodiments of the present invention, and do not necessarily show the specific dimensions and proportions of the various embodiments of the present invention. Certain features that are in certain figures may be shown exaggerated in detail in order to illustrate relevant details or structures of embodiments of the invention.

In the description of the embodiments of the present invention, the directional terms used in connection with "up", "down", "left", "right", "front", "back" and the like are used in the up, down, left, right, front, and back orientations in the drawings.

Fig. 1 is a perspective view illustrating an automatic liquid dispenser 1 according to a first embodiment of the present invention. The automatic dispenser 1 includes a housing portion 10, and the housing portion 10 includes a front housing portion 11 and a rear housing portion 13 that are removably mounted together. A liquid receiving tray 12 is mounted on the bottom of the front housing part 11. The space between the top of the front housing part 11 and the liquid receiving tray 12 is a sensing area S of the automatic liquid taking device 1. When a user carelessly moves hands out of the liquid outlet area of the automatic liquid taking device during taking liquid (for example, hand disinfection liquid) pumped by the automatic liquid taking device 1, the liquid receiving disc 12 takes the pumped liquid, so that the pumped liquid is prevented from dropping on the ground to affect the cleanness of the ground. The front housing part 11 is further provided with an observation window 15 so as to observe the liquid level of the liquid taking bottle installed in the automatic liquid taking device 1. The rear housing portion 13 is provided at the rear thereof with a plurality of mounting portions 14, and the mounting portions 14 are provided to mount the automatic liquid dispenser 1 to a suitable position, for example, to a wall of an activity area in a public place.

The automatic liquid dispenser 1 further includes a liquid dispensing mechanism 20 housed within the housing portion 10. Fig. 2 is a perspective view showing the liquid extracting mechanism 20 of the automatic liquid extractor 1. Fig. 3 is a perspective view of the liquid taking mechanism 20 of the automatic liquid taking device 1 viewed from another angle, in which a part of a cover plate is removed from the liquid taking mechanism 20 shown in fig. 2 to show a part of the internal structure of the liquid taking mechanism 20. Fig. 4 shows a front view of the liquid taking mechanism 20 shown in fig. 3, and fig. 5 shows a perspective view after a part of the liquid taking mechanism 20 shown in fig. 4 is removed.

As shown in fig. 2 to 5, the liquid taking mechanism 20 includes a first mounting bracket 21, a second mounting bracket 22, a sensing module 23, a driving part 25, and a power supply part 27. The power supply unit 27 is used to supply power to the power components of the liquid extracting mechanism 20, for example, the driving unit 25 and the sensing module 23. The power supply unit 27 may be a plurality of dry cells.

The first mounting bracket 21 includes a top plate 211, a first side plate (left side plate in fig. 2 to 5) 213, a back plate 215 (shown in fig. 2 and 4), and a second side plate 217 (not shown in fig. 2 to 4, shown in fig. 5). The first mount 21 is further provided with a liquid bottle attaching portion 212 extending from an inner wall of the first mount 21. As shown in fig. 2, the liquid extracting bottle mount 212 extends laterally toward the inside of the first mount 21 on the inner surfaces of the first side plate 213, the back plate 215, and the second side plate 217, and the inner edge of the liquid extracting bottle mount 212 forms a notch for mounting the liquid extracting bottle 30. In the example shown in fig. 2 to 5, the liquid access bottle 30 filled with a liquid (e.g., a hand disinfectant) is mounted to the liquid access bottle mounting part 212 of the first mounting bracket 21 via the adaptor 40 such that a neck of the bottle body 31 of the liquid access bottle 30 is caught in the recess of the adaptor 40 and the pump head 32 of the liquid access bottle 30 rests on the adaptor 40. However, the present invention is not limited thereto, and in other examples according to the present invention, the liquid taking bottle 30 may be directly mounted to the liquid taking bottle mounting part 212 without using the adaptor 40.

The second mounting bracket 22 and the first mounting bracket 21 are detachably engaged with each other such that a first side plate 221 (a left side plate, see fig. 2) of the second mounting bracket 22 and a second side plate 217 of the first mounting bracket 21 are aligned and engaged with each other to sandwich a portion of the driving part 25 (a driving arm 255 to be described later) therebetween, as shown in fig. 2.

The sensing module 23 is mounted to the second mounting bracket 22 and is configured to sense the presence of an object (e.g., a user' S hand) present in a sensing region S (see fig. 1) of the auto-extractor. The sensing module 23 may be an infrared sensing module.

Fig. 5 shows a perspective view of the liquid taking mechanism 20 of fig. 3 with the sensing module 23 and the second mounting bracket 22 removed, showing the driving part 25, and fig. 6 shows a perspective view of the driving part 25 alone. As shown in fig. 5 and 6, the driving portion 25 includes a motor 251, a cam portion 253, a driving arm 255, and a preload applying device 257. The motor 251 is provided to drive the driving arm 255 to move downward toward the liquid taking bottle mount 212 to press the pump head 32 of the liquid taking bottle 30 mounted at the liquid taking bottle mount 212. The cam portion 253 is provided to output the driving force of the motor 251 to the driving arm 255 so that the driving arm 255 moves toward the liquid-extracting bottle mounting portion 212. A surface of the cam portion 253 opposite to the motor 251 is provided with a transmission shaft 2531, and the cam portion 253 is mounted to an output shaft (not shown in the drawings) of the motor 251 such that the transmission shaft 2531 is eccentrically disposed from the output shaft of the motor 251. The drive shaft 2531 is mounted to the drive arm 255.

The drive arm 255 includes a transverse portion 2551 and a vertical portion 2553. The transverse portion 2551 and the vertical portion 2553 are connected to one another such that the drive arm 255 is generally L-shaped. In the example shown in the figures, the lateral portion 2551 and the vertical portion 2553 are integrally formed, for example by injection moulding. Alternatively, the lateral portion 2551 and the vertical portion 2553 may be assembled to each other. As shown in fig. 6, the outer side surface of the vertical portion 2553 is formed with a guide plate 2554, the central portion of the guide plate 2554 is connected with the outer side surface of the vertical portion 2553, and both side edges of the guide plate 2554 in the width direction X are spaced apart from the outer side surface of the vertical portion 2553, thereby forming a longitudinal first guide groove 2555 and a second guide groove 2556 between the guide plate 2554 and the vertical portion 2553. When the liquid extracting mechanism 20 is mounted in place, the driving arm 255 is at least partially positioned between the top plate 211 and the liquid extracting bottle mounting part 212. Specifically, the transverse portion 2551 of the driving arm 255 is located between the top plate 211 and the liquid bottle mounting portion 212, the vertical portion 2553 of the driving arm 255 is sandwiched between the second side plate 217 of the first mounting bracket 21 and the first side plate 221 of the second mounting bracket 22, the second side plate 217 of the first mounting bracket 21 is embedded in the first guide groove 2555, and the first side plate 221 of the second mounting bracket 22 is embedded in the second guide groove 2556, as shown in fig. 2 and 5. The drive arm 255 is movable up and down along the second side plate 217 of the first mounting bracket 21 and the first side plate 221 of the second mounting bracket 22. In addition, the outer side surface of the guide plate 2554 is provided with a transverse third guide groove 2557. The transmission shaft 2531 of the cam portion 253 is fitted into the third guide groove 2557, and as described above, the cam portion 253 is fitted such that the transmission shaft 2531 is eccentrically provided from the output shaft of the motor 251, and the cam portion 253 converts the rotation of the motor 251 into the up-down direction movement of the drive arm 255.

The preload applying device 257 is provided on the lateral portion 2551 of the drive arm 255. The preload applying device 257 includes a biasing member 2571 and a guide post 2573 that guides the biasing member 2571. In the present example, the urging member 2571 is an elastic member provided on the drive arm 255, and the urging member 2571 is compressed to apply a preload to the drive arm 255. When the liquid extraction mechanism 20 is mounted in place, the urging member 2571 is compressed between the top plate 211 and the lateral portion 2551 of the drive arm 255. Specifically, in the present example, the preload application device 257 employs a spring device, and the urging member 2571 employs a coil spring. However, the present invention is not limited thereto, and in other examples according to the present invention, the preload application device 257 may employ other suitable load application devices. The forcing member 2571 is mounted on the guide post 2573 to telescope along the guide post 2573. The guide post 2573 is provided at an intermediate position in the width direction X of the lateral portion 2551 of the drive arm 255, and is provided in the length direction Y of the lateral portion 2551 of the drive arm 255 such that, when the liquid taking mechanism 20 is mounted in place, the guide post 2573 is positioned directly above the pump head 32 of the liquid taking bottle 30, more specifically, directly above the pressing portion 321 (see fig. 2) of the pump head 32 of the liquid taking bottle 30, so as to apply the elastic force of the urging member 2571 to the pressing portion 321 via the drive arm 255. The lateral portion 2551 of the drive arm 255 is provided with a marking portion 2552, and the marking portion 2552 is disposed in alignment with the guide post 2573 in the width direction X of the lateral portion 2551. When the pipetting mechanism 20 is mounted in place and the pipetting bottle 30 is mounted to the first mounting bracket 21, the pipetting head 322 of the pump head 32 of the pipetting bottle 30 can be aligned with the marking 2552 of the driving arm 255 by rotating the pipetting bottle 30 in the recess of the adapter 40, as shown in fig. 3 and 5.

Fig. 7 showsbase:Sub>A sectional view taken alongbase:Sub>A sectional linebase:Sub>A-base:Sub>A in fig. 2, and fig. 8 showsbase:Sub>A partially enlarged view of fig. 7.

As shown in fig. 7 and 8, when the liquid taking mechanism 20 and the liquid taking bottle 30 are mounted in place, the end of the guide post 2573 is inserted into the through hole 2111 of the top plate 211 of the first mounting bracket 21, and the urging member 2571 is compressed between the top plate 211 and the lateral portion 2551 of the driving arm 255, thereby applying a downward preload to the lateral portion 2551 of the driving arm 255. The lateral portion 2551 of the driving arm 255 is positioned directly above the pressing portion 321 of the pump head 32, and the elastic force of the urging member 2571 causes the lateral portion 2551 of the driving arm 255 to press the pressing portion 321 of the pump head 32, thereby overcoming the elastic force of the spring 324 in the pump head 32 of the liquid bottle 30. The elastic force of the force application member 2571 is slightly smaller than the elastic force of the spring 324 in the pump head 32 of the liquid taking bottle 30, so that the force application member 2571 can overcome a part of the elastic force of the spring 324, but not enough to completely overcome the elastic force of the spring 324, and therefore, the first check valve 325 in the pump head 32 is not always in a conducting state.

When the sensing module 23 detects that, for example, the hand of the user is located in the sensing region S of the automatic liquid dispenser 1, the sensing module 23 sends the detection result to a controller (not shown) of the automatic liquid dispenser 1, so as to start the motor 251 to rotate. The rotational power of the motor 251 is transmitted to the driving arm 255 through the cam portion 253, so that the driving arm 255 moves downward. The transverse portion 2551 of the driving arm 255 presses the pressing portion 321 of the pump head 32 of the liquid taking bottle 30, so that the pressing portion 321 and the conduit pipe portion 323 move downward, and continuously overcome the elastic force of the spring 324 in the pump head 32, so that the first one-way valve 325 is opened, and the liquid in the liquid storage cavity between the first one-way valve 325 and the second one-way valve 326 is pumped to the conduit pipe portion 323 and is pumped to the hand of the user through the liquid outlet portion 322. As described above, since the force application member 2571 can overcome a part of the elastic force of the spring 324 in the pump head 32, the driving force provided by the motor 251 to the driving arm 255 only needs to overcome another part of the elastic force of the spring 324 during the pumping of the liquid, and thus the load of the motor 251 can be reduced. The motor 251 rotates one revolution, and the drive arm 255 completes one up-and-down motion. After the motor 251 rotates once, the controller stops the rotation of the motor 251, and the motor 251 does not apply a force to the driving arm 255. At this time, the tube portion 323 and the pressing portion 321 are moved upward by the elastic force of the spring 324 in the pump head 32, and the drive arm 255 is returned upward to the home position. When the conduit 323 moves upward, the volume of the liquid storage cavity between the first check valve 325 and the second check valve 326 increases, and the pressure in the liquid storage cavity decreases, so that the second check valve 326 moves upward, and the liquid in the bottle body 31 of the liquid taking bottle 30 enters the liquid storage cavity to prepare for the next liquid pumping.

The liquid taking mechanism 20 of the automatic liquid taking device 1 according to the first embodiment of the present invention is described above. In the liquid extracting mechanism 20, the preload applying device 257 is disposed in the driving portion 25, so that a preload can be applied to the driving arm 255 to overcome a part of the elastic force of the spring in the pump head 32 of the liquid extracting bottle 30, and the driving force required by the motor 251 to be provided for the driving arm 255 is reduced, thereby reducing the load of the motor 251 and reducing the energy consumption.

Fig. 9 to 12 show a liquid taking mechanism 20A of an automatic liquid taking device according to a second embodiment of the present invention. The liquid extraction mechanism 20A according to the second embodiment of the present invention has substantially the same configuration as the liquid extraction mechanism 20 according to the first embodiment of the present invention, and is different only in the preload applying device 257A of the driving portion 25 of the liquid extraction mechanism 20A and the corresponding arrangement of the top plate 211 of the first mounting bracket 21. In the drawings and hereinafter, the same or corresponding components are denoted by the same or corresponding reference numerals, and the corresponding descriptions are omitted. The difference between the liquid taking mechanism 20A and the liquid taking mechanism 20 will be mainly explained below.

Fig. 9 and 10 show a perspective view and a front view of the liquid taking mechanism 20A, respectively. Fig. 11 and 12 show a partially enlarged view and a partially sectional view of the liquid taking mechanism 20A, respectively, showing a preload applying device 257A of the liquid taking mechanism 20A.

As shown in fig. 9 to 12, the preload application device 257A of the driving portion 25 of the liquid taking mechanism 20A includes an urging member 2571, a guide post 2573, and a load adjustment portion. The force applying member 2571 is sleeved on the guide post 2573 to extend and retract along the guide post 2573. The load adjusting section adjusts the preload applied to the drive arm 255 by the preload applying device 257A. The load adjusting portion includes an adjusting member 2575, and the adjusting member 2575 is configured to adjust the amount of compression of the urging member 2571, thereby adjusting the preload applied by the urging member 2571 to the drive arm 255. The adjusting member 2575 passes through the through hole 2111A of the top plate 211 to be inserted into the first mounting bracket 21, and the insertion amount of the adjusting member 2575 passing through the through hole 2111A can be adjusted, thereby adjusting the compression amount of the urging member 2571. In the example shown in fig. 9 to 12, the adjusting member 2575 is screwed with the through hole 2111A of the top plate 211. The adjustment member 2575 is a threaded rod having a hollow shank and an end flange. The outer periphery of the shank portion of the adjusting member 2575 is provided with external threads to be threadedly engaged with the through-hole 2111A of the top plate 211 of the first mounting bracket 21, the through-hole 2111A being a threaded hole. The adjusting member 2575 is provided to be capable of being screwed with respect to the top plate 211 to adjust the insertion amount of the adjusting member 2575 through the through hole 2111A, thereby adjusting the compression amount of the urging member 2571. The shank of the adjustment member 2575 is provided with a central channel, into which the end of the guide post 2573 is inserted and which is movable relative to the shank of the adjustment member 2575. The outer diameter of the end flange of the adjusting member 2575 is set larger than the diameter of the through hole 2111A of the top plate 211, above the top plate 211, to facilitate screwing of the adjusting member 2575. The load adjustment portion also includes a baffle portion 2577. The adjustment member 2575 acts on the urging member 2571 via the shutter portion 2577 to adjust the amount of compression of the urging member 2571. In the example shown in the figures, the flapper portion 2577 is a collar with a flange that is slidably mounted on the guide post 2573, slidable relative to the guide post 2573. However, the present invention is not limited thereto. In one example according to the present invention, the flapper portion 2577 may be fixedly mounted to a lower end of the handle portion of the adjustment member 2575. In another example according to the present invention, the shield portion 2577 may be a flange integrally formed at a lower end portion of the shank portion of the adjusting member 2575. In addition, the baffle portion 2577 is not essential, and in still another example according to the present invention, the adjusting member 2575 may directly act on the urging member 2571 without providing the baffle portion 2577.

As best shown in fig. 12, when the liquid taking mechanism 20A is mounted in place, the adjusting member 2575 is screwed into the through hole 2111A of the top plate 211 of the first mounting bracket 21, one end of the guide post 2573 can protrude into the hollow shank of the adjusting member 2575, the lower end portion of the adjusting member 2575 abuts against the flange of the baffle portion 2577, and the urging member 2571 is compressed between the flange of the baffle portion 2577 and the lateral portion 2551 of the drive arm 255. By screwing the adjustment member 2575, the amount of compression of the force application member 2571, and thus the preload applied by the force application member 2571 to the drive arm 255, can be adjusted to accommodate pump heads of different spring forces, or to adjust the amount of fluid output from the pump head. When the adjustment member 2575 is threaded toward the lateral portion 2551 of the drive arm 255, the lower end of the adjustment member 2575 abuts against the flange of the baffle portion 2577, causing the baffle portion 2577 to move toward the lateral portion 2551 of the drive arm 255, increasing the amount of compression of the urging member 2571, thereby increasing the preload applied by the urging member 2571 to accommodate a pump head with greater spring force, or increasing the liquid discharge capacity of the pump head. When the lateral portion 2551 of the driving arm 255 is screwed with the adjusting member 2575, the flange of the blocking plate portion 2577 moves upward under the elastic force of the spring 2571, the force applying member 2571 rebounds, the compression amount of the force applying member 2571 is reduced, and the preload applied by the force applying member 2571 is reduced to adapt to a pump head with smaller elastic force or reduce the liquid output amount of the pump head.

According to the utility model discloses a second embodiment get liquid mechanism 20A and have the automatic liquid ware of getting liquid mechanism 20A can realize and according to the utility model discloses a first embodiment get liquid mechanism 20 and get the above-mentioned beneficial technological effect that liquid ware 1 is similar automatically, can apply the preload to the actuating arm, reduce the load of motor to reduce the energy consumption. In addition, the liquid taking mechanism 20A is provided with the load adjusting part, so that the applied preload can be adjusted as required, the liquid taking mechanism can adapt to pump heads with different elastic forces, the liquid outlet amount can be adjusted, and the application range of the liquid taking mechanism and the automatic liquid taking device is expanded.

Here, the exemplary embodiments of the liquid taking mechanism and the automatic liquid taking apparatus having the same according to the present invention have been described in detail, but it should be understood that the present invention is not limited to the specific embodiments described and illustrated in detail above. Numerous modifications and variations can be made by those skilled in the art without departing from the spirit and scope of the invention. All such variations and modifications are intended to fall within the scope of the present invention. Moreover, all the components described herein may be replaced by other technically equivalent components.

Claims (14)

1. A liquid extraction mechanism, comprising:

the first mounting frame is provided with a liquid taking bottle mounting part and a top plate positioned above the liquid taking bottle mounting part; and

the driving part comprises a driving arm and a motor, the driving arm is at least partially positioned between the top plate and the liquid taking bottle mounting part, the motor is arranged to drive the driving arm to move towards the liquid taking bottle mounting part so as to press the pump head of the liquid taking bottle mounted at the liquid taking bottle mounting part,

wherein the drive section further comprises a preload application device configured to apply a preload to the drive arm toward the liquid-extracting bottle mounting section.

2. The mechanism of claim 1, wherein the preload applying means comprises an urging member, the urging member being an elastic member provided on the driving arm, the urging member being compressed to apply a preload to the driving arm toward the bottle mounting portion.

3. The fluid extraction mechanism of claim 2, wherein the force applying member is a coil spring.

4. The mechanism of claim 2, wherein the preload applying means further comprises a guide post on which the force applying member is mounted to extend and retract along the guide post, one end of the guide post being disposed on the driving arm.

5. The mechanism of claim 4, wherein the top plate is provided with a through hole through which the other end of the guide post can pass.

6. The fluid extraction mechanism of claim 1, wherein the preload application device comprises a load adjustment portion configured to adjust the preload applied by the preload application device to the drive arm.

7. The fluid extraction mechanism of claim 6,

the preload applying device includes an urging member which is an elastic member provided on the driving arm and is compressed to apply a preload to the driving arm toward the liquid-extracting bottle mounting portion; and

the load adjusting portion includes an adjusting member provided to adjust a compression amount of the urging member.

8. The liquid taking mechanism according to claim 7, wherein the adjusting member is inserted into the first mounting bracket through a through hole in the top plate, and an insertion amount of the adjusting member through the through hole can be adjusted.

9. The fluid extraction mechanism of claim 8, wherein the adjustment member comprises a shank provided with an external thread, the through-hole being a threaded hole, the shank being in threaded engagement with the through-hole.

10. The fluid extraction mechanism of claim 9, wherein the handle is provided with a central channel;

the preload applying apparatus further includes a guide post on which the force applying member is mounted to be telescopic along the guide post, one end of the guide post being disposed on the driving arm, and the other end of the guide post being inserted into the central passage of the shank and being movable relative to the shank.

11. The mechanism of claim 10, wherein the load adjustment portion further comprises a baffle portion, and the adjustment member acts on the biasing member via the baffle portion.

12. The liquid extracting mechanism according to claim 11, wherein the baffle portion is fixedly mounted to or integrally formed at a lower end portion of the shank portion of the adjusting member; or

The flapper portion is slidably mounted to the guide post.

13. The liquid extraction mechanism of any one of claims 1 to 12, further comprising:

a sensing module configured to detect a hand of a user; and

and the controller starts the motor according to the detection result of the induction module to drive the driving arm.

14. An automatic liquid dispenser comprising a housing portion, characterized in that the automatic liquid dispenser further comprises a liquid dispensing mechanism according to any one of claims 1 to 13, the liquid dispensing mechanism being housed in the housing portion.

Images